Navigation System Symptom Troubleshooting - Interface Dial And Navigation Hard Buttons Do Not Work (2014 2015)

NOTE:

Check the vehicle 12 volt battery condition first .
Check any official Honda service website for more service information about the navigation system.
Check the connectors for poor connections or loose terminals.

Problem verification 1
-1. Turn the vehicle to the ON mode.

- 2. Check if the navigation system operate properly by interface dial and the navigation hard buttons.

Do the interface dial and the navigation hard buttons workΩ

YES

Intermittent failure, the system is OK at this time.

NO

The failure is duplicated, go to step 2.
Operation check
-1. Go into the System Diagnostic Mode, and check if the diagnosis runs.

Did the system diagnostic mode run?

YES

Go to step 3.

NO

Go to step 4.

Problem verification 2

-1. Turn the vehicle to the ON mode.

- 2. Go into the System Diagnostic Mode, and use the Unit Check diagnosis to check the Hard Key.

- 3. Operate all buttons in the appropriate switch list.

Button Name
NAV button
PHONE button
INFO button
AUDIO button
BACK button
MENU button
DAY/NIGHT ( ) button
SETTINGS button
ENTER button

Do all the items in the appropriate switch list work properly?

YES

Intermittent failure, the system is OK at this time.

Replace the navigation switch panel .

Fuse check

-1. Turn the vehicle to the OFF (LOCK) mode.

- 2. Check the following fuse.

Fuse	No. B37 (7.5 A)
Location	Under-dash fuse/relay box

Are the fuses OK?

YES

Go to step 5.

Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. B37 (7.5 A) fuse circuits.

Open wire check (ACC line)

-1. Turn the vehicle to the ON mode.

- 2. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
Test circuit	ACC
Test point 1	Navigation switch panel 12P connector No. 1 (PUR)
Test point 2	Body ground

Courtesy of HONDA, U.S.A., INC.

Is there battery voltage?

YES

The ACC wire is OK. Go to step 6.

Repair an open in the wire between the No. B37 (7.5 A) fuse in the under-dash fuse/relay box and the navigation switch panel.

Open wire check (GND line)

-1. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
Test circuit	GND
Test point 1	Navigation switch panel 12P connector No. 12 (BRN)
Test point 2	Body ground

Courtesy of HONDA, U.S.A., INC.

Is there less than 0.2 V?

YES

The GND wire is OK. Go to step 7.

Repair an open or high resistance in the wire between the navigation switch panel and body ground (G506).

Shorted wire check (JOG line)

-1. Turn the vehicle to the OFF (LOCK) mode.

- 2. Disconnect the following connectors.

Audio-navigation unit connector F (18P) - Refer to: Audio-Navigation Unit Removal and Installation (2014 2015), or Audio-Navigation Unit Removal and Installation (With Display Audio) (2017)

Navigation switch panel 12P connector

- 3. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Audio-navigation unit connector F (18P): disconnected
	Navigation switch panel 12P connector: disconnected
Test circuit	JOG
Test point 1	Audio-navigation unit connector F (18P) No. 16 (WHT)
Test point 2	Body ground

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

There is a short to body ground in the wire between the audio-navigation unit and the navigation switch panel. Replace the affected shielded harness.

The JOG wire is not shorted to ground. Go to step 8.

Shorted wire check (SH JOG line to JOG line)

-1. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Audio-navigation unit connector F (18P): disconnected
	Navigation switch panel 12P connector: disconnected
Test circuit	SH JOG, JOG
Test point 1	Audio-navigation unit connector F (18P) No. 9 (BLK)
Test point 2	Audio-navigation unit connector F (18P) No. 16 (WHT)

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

There is a short in the wires between the audio-navigation unit and the navigation switch panel. Replace the affected shielded harness.

The SH JOG and the JOG wires are not shorted. Go to step 9.

Open wire check (JOG line)

-1. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Audio-navigation unit connector F (18P): disconnected
	Navigation switch panel 12P connector: disconnected
Test circuit	JOG
Test point 1	Audio-navigation unit connector F (18P) No. 16 (WHT)
Test point 2	Navigation switch panel 12P connector No. 5 (WHT)

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The JOG wire is OK. Go to step 10.

There is an open in the wire between the audio-navigation unit and the navigation switch panel. Replace the affected shielded harness.

Navigation switch panel check (substitution)
-1. Substitute a known-good navigation switch panel.

- 2. Reconnect all the connectors, and recheck.

Does the symptom go away?

YES

Replace the original navigation switch panel .

NO

Replace the audio-navigation unit - Refer to: Audio-Navigation Unit Removal and Installation (2014 2015), or Audio-Navigation Unit Removal and Installation (With Display Audio) (2017) .